How severe is CVE-2004-0590?

CVE-2004-0590 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2004-0590 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0590?

CVE-2004-0590 primarily affects Frees Wan. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2004-0590?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2004-0590 published?

CVE-2004-0590 was published on 2004-12-06 and last updated on 2026-06-16.

CVE-2004-0590

CVE-2004-0590 is a critical-severity vulnerability in Frees Wan with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Frees Wan
Published: 2004-12-06
Last modified: 2026-06-16

Description

FreeS/WAN 1.x and 2.x, and other related products including superfreeswan 1.x, openswan 1.x before 1.0.6, openswan 2.x before 2.1.4, and strongSwan before 2.1.3, allows remote attackers to authenticate using spoofed PKCS#7 certificates in which a self-signed certificate identifies an alternate Certificate Authority (CA) and spoofed issuer and subject.

Frequently asked questions

What is CVE-2004-0590?: FreeS/WAN 1.x and 2.x, and other related products including superfreeswan 1.x, openswan 1.x before 1.0.6, openswan 2.x before 2.1.4, and strongSwan before 2.1.3, allows remote attackers to authenticate using spoofed PKCS#7 certificates in which a self-signed certificate identifies an alternate Certificate Authority (CA) and spoofed issuer and subject.
How severe is CVE-2004-0590?: CVE-2004-0590 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2004-0590 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0590?: CVE-2004-0590 primarily affects Frees Wan. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2004-0590?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2004-0590 published?: CVE-2004-0590 was published on 2004-12-06 and last updated on 2026-06-16.

References

Affected products (6)

cpe:2.3:a:frees_wan:frees_wan:1:*:*:*:*:*:*:*
cpe:2.3:a:frees_wan:frees_wan:2:*:*:*:*:*:*:*
cpe:2.3:a:frees_wan:super_frees_wan:1:*:*:*:*:*:*:*
cpe:2.3:a:openswan:openswan:1:*:*:*:*:*:*:*
cpe:2.3:a:openswan:openswan:2:*:*:*:*:*:*:*
cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*

More vulnerabilities in Frees Wan

CVE-2005-3671 — High (CVSS 7.8): The Internet Key Exchange version 1 (IKEv1) implementation in Openswan 2 (openswan-2) before 2.4.4, and freeswan in…
CVE-2002-0666 — Medium (CVSS 5.0): IPSEC implementations including (1) FreeS/WAN and (2) KAME do not properly calculate the length of authentication data,…

All CVEs affecting Frees Wan →